[R] about ECDF display in ggplot2

Bogdan Tanasa
2018-07-06T23:32:41Z

Dear all,

I would appreciate having your advice/suggestions/comments on the following
:

1 -- starting from a vector that contains LENGTHS (numerically, the values
are from 1 to 10 000)

2 -- shall I display the ECDF by using the R code and some "limits" :

BREAKS = c(0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300, 400, 500,
           1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000)

ggplot(x, aes(LENGTH)) +
          stat_ecdf(geom = "point") +
          scale_x_continuous(name = "LENGTH of DEL",
                             breaks = BREAKS,
                             limits=c(0, 500))

3 -- I am getting the following warning message : "Warning message: Removed
109 rows containing non-finite values (stat_ecdf)."

The question is : are these 109 values removed from VISUALIZATION as i set
up the "limits", or are these 109 values removed from statistical
CALCULATION?

4 -- in contrast, shall I use the standard R functions plot(ecdf), there is
no "warning mesage"

plot(ecdf(x$LENGTH), xlab="DEL LENGTH",
                     ylab="Fraction of DEL", main="DEL",
xlim=c(0,500),
                     col = "dark red")

Thanks a lot !

-- bogdan

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